@misc{indiciae21ecb90a6185,
  title = {Metallic Wall Hall Thrusters},
  author = {Goebel, Dan Michael and Hofer, Richard Robert and Mikellides, Ioannis G.},
  year = {2018},
  url = {https://ntrs.nasa.gov/citations/20180002504},
  note = {Source identifier: 20180002504}
}